Condenser



Dec. 3, 1929 w. DUBILIER 1,737,752

CONDENSER Filed Sept. 3, '1924 INVENTOR wax/1w paw? ATTORNEY Patented Dec. 3, 1929 1 UNITED STATES WILLIAM DUIBILIER, on NEW YORK, n. Y., reunion, or NEW YORK, n. Y.,

assrenoa ro nuanlrmoonnnnsnn con in ooarona'rion er nnnawazsn CONDENSER Application filed. September-3, 1924. Serial No. $5,583. I

This invention relates to electrical condensers; particularly electrical condensers adapted for high frequency and high potential operation, as in radio circuits.

An object of this invention is to provide a condenser the type of which is enclosed in a suitable housing which is so constructed that the body of the condenser can be very conveniently mounted in the housing and supported therein in a manner that permits the condenser to be easily put into the housing and secured in operative position or dismounted and taken out when occasion for its removal arises.

The nature (if the invention is set forth in the following description taken with the drawings which show the best form or my 1nvention now known to me, and the novel characteristics of my improvements are defined in the appended claims. While I show only one form in which the invention is embodied, l, of course, reserve the right to make any changes which are consistent with the scope and principle of the invention, as indicated by the general meanings of the terms in which the claims are expressed.

()n the drawings,

Figure 1 shows in vertical section a condenser with a housing according to my invention; and

Figure 2 is a bottom-plan or the condenser in the housing with the cover which, in practice, will be fitted over the bottom of the hous= ing, removed.

The same numerals identify the same parts throughout.

The housing is indicated at 1 and is pref-,

erably of very strong construction; ll usually make this housing of metal cast into shape; and within the housing is the body of the condenser 2. The lower end of the housin 1 is open and'is provided with a remova le cover 3 which can be removably fastened in place in any suitable way. The other end or top of the housing is also open, but this end too is closed by a cover plate 4 removably held in place by any suitable means such as screws and at the center of this cover plate is an aperture of considerable diameter 5, the edges of which may be rounded as shown. Held against the inner and outer laces pf the cover a are tubular insulators 6 which may be made of vitreous material and are associated with caps 7, for example, which may be of metal and are arranged to close the open bottom of the inside or lower insulator 6, and the open top of the outside or upper insulator 6; the lower end or the outside insulator and the upper end of the inside insulator abutting the outer and inner faces respectively of the plate or cover 4}, so as to surround and conceal the aperture 5. Both the caps 7 have threaded openings at the middle and through these openings passes a central terminal rod or stem 9 projecting at both ends through the caps 7 and provided at its upper extremity with binding nuts 10 to enable the conductor to be secured thereto. Of course, by turning up the caps 7 on this rod 9, the two caps can be made to press firmly against the opposite extremities or the insulator 6, and the rod 9 will, of course, pass centrally throu h the aperture 5 so as to be located a material distance from the periphery of this aperture at all points.

The rod 9 extends down into the housing a material distance below the inside cap 7 and the body of the condenser 2 is suspended from this rod which serves as a support for the con denser. While the actual type of condenser may be varied, I show the condenser Q as consisting of a central block 11 having a threaded opening passing through same to receive the lower end of the: rod 9, and the condenser comprises two halves, each of which is clamped against one of the opposite side faces of the blockll. The two halves in question are indicated by the numeral 12. They will include, of course, sheets or elements of electrically conductive material separated by .a suitable dielectric, and the end of each half remote from the central block 11 will carry plates or members 13 which are engaged by resilient elements M that may have the form of leaf springs and be disposed between the members 13, and pressure members 15 at each or the two ends of the condenser, the two mem bers 15 being secured together by wires or cables which encircle the two members 15 of the condenser between them, the wires or cathe housing to the electric circuit.

bles 16 being under sufiicient tension to draw the two plates or members 15 towards each other and make the springs 14 press against the end plates 13 of the condenser, so as to force the two halves 12 against the opposite faces of the head 11, and thus keep the conductive elements and the dielectric in firm engagement over their entire surfaces. The parts 13, 14 and 15 may be of conductive material such as metal, and each of the plates 15 can be connected as by wires or conductors 17 to the body of the housing 1. The housing may have extensions or lugs 18 with openings 19 to enable the housing with the condenser in it to be fastened in position for operation in connection with the circuit for which it is 'intended, and the lower endof the rod 9 may be provided with a nut 20 to engage the bottom of the block or head 11.

In practice, the conductors 17 will serve as low tension connectors to the low potential sides of the two halves 12 of the condenser; while the high potential sides of the two halves will be joined to the block 11 and terminal rod 9. The conductive elements separated by the insulation of each of the two halves 12 of the condenser may be grouped in any suitable manner, so that the head 11 serves as a high potential terminal with the opposite ends of the two halves constituting the low potential terminals of the condenser joined through the connectors 17 and the body of The whole condenser 2 being supported in the housing 1 entirely by means of the rod 9, can easily be mounted and secured on this rod in the housing or taken off this rod and removed from the housing Whenever necessary after first removing the lower cover 3. For this purpose, the housing may be made large enough to permit the whole condenser 2 to be turned round therein after the cover 3 is taken off, and the connectors 17 detached, so as to unscrew the condenser from the rod or :part 9, or if the housing is smaller, the rod denser in the housing, the housing having an as to unscrew it from the head 11 and the two caps 7 if necessary, until it is disconnected from the condenser.

Having described my invention, what I believe to be new and desire to secure and protect by Letters Patent of the United States 1s:

1. The combination of a housin a conopening, a rod detachably secured to the condenser and projecting through the opening and supporting the condenser thereon, hollow insulators surrounding the opening inside and outside of the housing, capsfor the insulators, the caps and the rod being threaded for mutual engagement, the condenser having a central block tobe mounted on the inner end of said rod, said rod forming one terminal of the condenser, plates, resilient elements, and

pressure members at the ends of the condenser, cables encircling said condenser to exertpressue on said plates, elements and members towards said block, and terminals connecting the condenser to the housing.

2. The combination of a housing, a condenser in the housing, the housing having an opening, a rod passing through the opening and supporting the condenser thereon, hollow insulators surrounding the opening inside and outside the housing, and mounting said rod, and clamping means in the casing surrounding said condenser.

3. The combination of a housing, a condenser in the housing, the housing having an opening, a rod supporting the condenser and projecting through the opening, hollow insu= lators surrounding the opening inside and outside of the housing, caps for the insulators through which the rod passes, and clamping means for the condenser insidethe housing.

4. The combination of a housing, a condenser within the housing, closure means for the housing, means independent of said housing and closure. for clamping the condenser, and a member extending through the housing and serving as a means for supporting the condenser.

5. The combination of a housing, a condenser within the housing, closure means for the housing, means independent of said housing and closure for clamping the condenser, and a supporting member for the condenser extending through the housing, said member serving as a terminal for the condenser.

6.. The combination of a housing, a condenser within the housing, a closure member for the housing, means independent of said housing and closure for clamping the condenser, a supporting member for the condenser extending through the housing, and means for insulating said supporting member.

7. The combination of a housing, a condenser within the housing, a closure member for the housing, means independent of the housing for clamping the condenser, a member serving as the sole supporting means for the condenser, said member extending through the housing and insulated therefrom and comprising one of the terminals for the condenser.

8. The combination of a housing, a closure member for the housing, a condenser within comprising a central headagainst which the condenser sections are secured, means independent of said housing and closure for clamping said sections to the head, and a supporting member for the condenser engaging said head and extending through the housing, said member comprisingthe sole supporting means for the condenser.

9. A condenser, a clamp compressing the condenser, and a terminal constituting a sole support for the condenser, said terminal be be secured in place, and serve as a ing disposed so that it is likewise compressed by the clamp.

10. A condenser, a clamp compressing the condenser, and a terminal constituting a support for the condenser, the clamp securing condenser and terminal together, the clamp being disposed so that it compresses the terminal also. 7

11. The combination of a terminal, a condenser secured to the terminal, and insulation attached to the terminal to enable it to sole support for the condenser.

p 12. The combination of'a terminal, a condenser, a member clamping the condenser and securing it to the terminal, and insulation attached to the terminal to enable it to be fixed in position and serve as a support for the condenser.

13. The combination of a terminal, a condenser, 'a member clampin the condenser and securing it to the terminal, and insulation attached to the terminal to enable it to be fixed in position and serve as a support for the condenser, said member being freely mounted except for its engagement with said condenser.

14. The combination of a casing, a terminal mounted on the casingand a condenser secured to the terminal in thecasing, the terminal being the sole supportfor the condenser in said casing.

15. The combination of a casing, a terminal mounted on the casing, a condenser mounted upon the terminal, and a member securing the condenser under pressure to the terminal, said terminal being the sole support for said condenser and said member.

16. The combination of a casing, a terminal mounted on the casing, a condenser mounted upon the terminal, and a member securing the condenser under pressure to the terminal, said terminal being the sole support for said condenser and said member, said member being freely mounted in the casing except for its engagement with the condenser.

17. The combination of a terminal to be supported in fixed position, a condenser comprising sections aflixed to the end of said terminal at different points, and a clamping member securin said sections to said terminal, the clamp ing freel mounted except for its engagement with said sections.

18. The combination of a casing having an opening, an insulating cover for said opening, a terminal mounted upon said cover and extending .into the casing, and a condenser attached to the terminal in the casing, the terminal being the sole support for said condenser.

19. The combination of a casing having an opening, an insulating cover for said opening, a terminal mounted upon said cover and extending into the casing, and a condenser attached to the terminal in the casing, the terminal being the sole support for said con denser, said condenser comprising sections engaging the terminal at difierent points.

20. The combinationof a casin having an opening, an insulating cover for t e openlng, a terminal mounted on the cover and extending into the casing, a condenser in the casing, a clamping member for securing the condenser and terminal to ether, the terminal being the sole' support or said condenser and said member.

21. The combination of a casing havin an opening, an insulating cover for the openlng, a terminal mounted on the cover and extending into the casing, a condenser in the'casing, and a clamping member for securing the condenser and terminal to ether, the terminal being the sole support or said condenser and said member, said condenser comprisin sections engaging the terminal at di erent points and being encircled by said member.

Signed at New York, in'the county of New York and State of New York, this 27th day of August A. D. 1924.

WILLIAM DUBILIER. 

